Active immunization against diphtheria, tetanus, pertussis, & poliomyelitis as the fifth dose in the diphtheria, tetanus, and acellular pertussis (DTaP) vaccine series and the fourth dose in the inactivated poliovirus vaccine (IPV) series when previous DTaP vaccine doses have been with INFANRIX and/or PEDIARIX and for the first three doses and INFANRIX for the fourth dose